Shared with you
The GWR open carriage used by some of the characters to travel to the embarkation point is Carriage 650 from the Severn Valley Railway originally built in 1913. It was restored by the SVR Great Western Association and was the Overall Winner of the Heritage Railway Association Carriage and Wagon Award 2015.
The novel which this mini-series is based on has sold more than 100 million copies worldwide. It is Dame Agatha Christie's best-selling novel and also the world's best-selling mystery.
There are only seven seconds in which all ten main actors are in the same room.
The soldier figurine designs were inspired by the characters themselves; a deliberate move by the art direction. (e.g. The figurine representing Mrs. Rogers is weakly sculpted and hunched, the Lombard figure is stacked and protruding, commanding-like.)
This is the first time a major English adaptation of the story uses the surname MacArthur for the General (Sir Sam Neill). The General's name was changed to either MacKenzie or Mandrake for the stage and early screen to avoid referencing WWII hero, General Douglas MacArthur.
When Audrey is typing the invitations, the letterhead on the papers shows that the name of the house on Soldier Island is India House. For most of the years the novel has been in print, the island's name was Indian Island, and the poem referred to ten little "Indians".